Designed with a bullet seal and bearing assembly, the OnGauge sealed-bearing roller reamer reduces downhole torque that is typical with fixed-blade stabilizers. Torque reduction allows a more stable drilling environment, enabling extended runs in complex extended-reach wellbore geometries. Reducing downhole torque also improves weight transfer to the bit and minimizes stick/slip so that more energy is available at the bit to improve ROP and extend the operational life of the drill bit and MLWD tools.